回火温度对摆线轮材料摩擦磨损性能的影响  

Effect of tempering temperature on friction and wear properties of cycloidal gear material

作　　者：郭旭峰 于爱兵[1,2] 齐少春 陈正周 GUO Xufeng;YU Aibing;QI Shaochun;CHEN Zhengzhou(Faculty of Mechanical Engineering and Mechanics,Ningbo University,Ningbo 315211,China;Ningbo Key Laboratory of Micro-Nano Motion and Intelligent Control,Ningbo 315211,China;Ningbo Zhongda Leader Intelligent Transmission Co.Ltd.,Ningbo 315301,China)

机构地区：[1]宁波大学机械工程与力学学院,浙江宁波315211 [2]宁波市微纳运动及智能控制重点实验室,浙江宁波315211 [3]宁波中大力德智能传动股份有限公司,浙江宁波315301

出　　处：《兵器材料科学与工程》2025年第2期103-108,共6页Ordnance Material Science and Engineering

基　　金：宁波市科技创新2025重大专项(2021Z068;2019B10078)。

摘　　要：为确定摆线轮材料GCr15轴承钢热处理工艺中合适的回火温度,改善摆线轮的摩擦磨损性能,对GCr15淬火轴承钢进行不同回火温度处理。通过摩擦磨损试验机和激光共聚焦显微镜表征试样表面的摩擦磨损性能,并通过扫描电镜、X射线衍射仪及洛氏显微硬度计分析GCr15轴承钢的组织和硬度。结果表明:当摆线轮材料GCr15轴承钢的回火温度为250℃时,试样表面耐磨性能最佳,具有较低的摩擦因数和磨损率,磨损机制为轻微磨粒磨损;当回火温度略高于马氏体转变起始温度(M_(s))时,可以获得以马氏体为基体并含有少量下贝氏体及奥氏体等韧性相的组织,在提升材料表面韧性的同时,硬度也保持在较高的水平,能明显改善GCr15轴承钢材料的表面耐磨性能。To identify the appropriate tempering temperature for the heat treatment process of cycloidal wheel material GCr15 bearing steel,aiming to improve the friction and wear performance of the cycloidal wheel,GCr15 quenched bearing steel was treated at different tempering temperatures.The friction and wear properties of the samples'surfaces were characterized using a friction and wear tester and a laser confocal microscope.Additionally,the microstructure and hardness of GCr15 bearing steel were analyzed using a scanning electron microscope(SEM),X⁃ray diffraction(XRD),and a Rockwell microhardness tester.The results show that when the tempering temperature of the cycloidal wheel material GCr15 bearing steel is controlled at 250℃,the surface wear resistance of the sample is optimal,exhibiting a lower friction coefficient and wear rate,with the wear mechanism being mild abrasive wear.When the tempering temperature is slightly higher than the martensite start temperature(M_(s)),a microstructure consisting mainly of martensite with a small amount of lower bainite and austenite can be obtained,While improving the surface toughness of the material,the hardness is also maintained at a high level,which significantly improves the surface wear resistance of GCr15 bearing steel material.

关 键 词：GCR15轴承钢 回火温度 摩擦磨损 下贝氏体 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG156.5[金属学及工艺—金属材料]